how to Send a public message privately in whatsapp.
Ever had a free evening and wanted to ask several of your friends if they are around without having to open up each chat to ask them seperately?
You can send a broadcast message to a list of contacts with it appearing as though you’ve asked them individually. Great for saving time, terrible if they all reply yes.
iOS: Chats > Broadcast Lists > New List > Add contacts
Android: Chats > Menu > New Broadcast